使用Live Id从通用应用程序登录到Web Api

Question

我正在尝试实现以下功能：

1. 用户从Windows Phone 8.1（或通用）应用程序登录Live Id帐户
2. 应用程序访问我用ASP开发的WebApi。NET Web Api 2
3. 在这个WebApi中，我需要对用户进行身份验证
4. 稍后，我想在web应用程序中验证同一用户

这就是我正在做的，但它不起作用。

在我的Windows Phone应用程序中：

var authClient = new LiveAuthClient("http://myservice.cloudapp.net");
LiveLoginResult result = await authClient.LoginAsync(new string[] { "wl.signin" });
if (result.Status == LiveConnectSessionStatus.Connected)
{
    connected = true;
    var identity = await ConnectToApi(result.Session.AuthenticationToken);
    Debug.WriteLine(identity);
}

然后

private async Task<string> ConnectToApi(string token)
{
    using (var client = new HttpClient())
    {
        client.BaseAddress = new Uri("http://myservice.cloudapp.net/");
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
        client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
        // HTTP GET
        HttpResponseMessage response = await client.GetAsync("api/values");
        if (response.IsSuccessStatusCode)
        {
            string result = await response.Content.ReadAsStringAsync();
            return result;
        }
        else
            return response.ReasonPhrase;
    }
}

然后在我的web api中，我有以下

public void ConfigureAuth(IAppBuilder app)
{
    app.UseMicrosoftAccountAuthentication(
        clientId: "my client id",
        clientSecret: "my secret");
}

我注册了http://myservice.cloudapp.net作为重定向url。

问题是身份验证不起作用，web api操作无法识别用户。

Answer 1

我完全搞错了。首先，我实际上需要使用应用程序。使用JwtBearerAuthentication方法。示例位于此处http://code.lawrab.com/2014/01/securing-webapi-with-live-id.html.但当我尝试时，我在输出中得到了这个错误

IDX10500: Signature validation failed. Unable to resolve SecurityKeyIdentifier: 'SecurityKeyIdentifier ( IsReadOnly = False, Count = 1, Clause[0] = System.IdentityModel.Tokens.NamedKeySecurityKeyIdentifierClause )

这一次我花了一段时间才弄清楚，直到我发现了这篇文章：JwtSecurityTokenHandler 4.0.0 Breaking Changes？

把这些东西放在一起，我得到了现在在我的测试环境中似乎有效的解决方案：

public void ConfigureAuth(IAppBuilder app)
    {
        var sha256 = new SHA256Managed();
        var sKey = "<Secret key>" + "JWTSig";
        var secretBytes = new UTF8Encoding(true, true).GetBytes(sKey);
        var signingKey = sha256.ComputeHash(secretBytes);
        var securityKeyProvider = new SymmetricKeyIssuerSecurityTokenProvider("urn:windows:liveid", signingKey);
        var securityKey = securityKeyProvider.SecurityTokens.First().SecurityKeys.First();
        var jwtOptions = new JwtBearerAuthenticationOptions()
        {
            //AllowedAudiences = new[] { "<url>" },
            //IssuerSecurityTokenProviders = new[] 
            //{ 
            //  new SymmetricKeyIssuerSecurityTokenProvider("urn:windows:liveid",signingKey)
            //},
            TokenValidationParameters = new System.IdentityModel.Tokens.TokenValidationParameters()
            {
                IssuerSigningKeyResolver = (token, securityToken, keyIdentifier, validationParameters) =>
                    {
                        return securityKey;
                    },
                ValidAudience = "<url>",
                ValidIssuer = securityKeyProvider.Issuer
            }
        };
        app.UseJwtBearerAuthentication(jwtOptions);
    }

Answer 2

对于任何想从JavaScript中做到这一点的人，我通过以下博客中的步骤成功地实现了这一点。你可以通过jwt.io 找到受众

https://blog.dirk-eisenberg.de/2014/08/30/validate-authentication_token-from-microsoft-liveid-with-node-express-jwt/

const validateLiveJWT = (token) => {
    const secret = '<<SECRET>>';
    const sha256 = crypto.createHash('sha256');
    sha256.update(secret + 'JWTSig', 'utf8');
    const secretBase64 = sha256.digest('base64');
    const secret = new Buffer(secretBase64, 'base64');
    const options = {
        audience: '<<AUDIENCE>>',
        issuer: 'urn:windows:liveid',
    };
    return new Promise((resolve) => {
        jwt.verify(token, secret, options, (err: any, claims: any) => {
            if (err) {
                resolve(undefined);
            } else {
                resolve(claims);
            }
        });
    });
}